in www.25sorrisi.it
I asked for logs and I got what is reported in the picture.
The link "forum user report" points to "http://www.25sorrisi.it/moodle/mod/forum/user.php?id=3&user=28&mode=posts"
but by clicking on it the pop up window shows the error "A required parameter (course) was missing"

If you need to get inside 25sorrisi, just ask to abix, of course.
Ciao.